So, just some shots in the dark here as to possible route map/episode order based on sightings/last night's preview/others' thoughts. Certainly some of these could end up being combined legs with other destinations we don't know about.
EP1: Denver (Red Rocks Amphitheatre) to Sao Paulo, Brazil (bridge)
EP2: Sao Paulo to Europe Destination 1 (pure speculation - cars in helicopter shot from preview look European to me)
EP3: Europe Destination 1 to Paestum/Corinth, Greece (ruins, diving into canal)
EP4: Paestum/Corinth to Moscow, Russia (basilica, ballet)
EP5: Moscow to Perth, Australia (newspaper)
EP6: Perth to Darwin, Australia (newspaper)
EP7: Darwin to Adelaide, Australia (sighting)
EP8: Adelaide to Singapore
EP9: Singapore to Lopburi, Thailand (masks)
EP10: Lopburi to Tokyo (shopping district, Mt. Fuji)
EP11: Tokyo to Anchorage (sighting, red plane)
EP12: Anchorage to Denver
I think the route's pretty close, but again there will undoubtedly be some variations and other destinations.